Brace brace brace brace, attach the doors, fit and brace brace brace. I can’t emphasize enough brace. You have already gone too far without bracing. Step backwards and correct your mistake before going forward again. Aftermarket floor pans are NOT perfect. Im just emphasizing what everyone else has told you. Do not ignore this free advise.
Martin '62 Chevy C-10 Stepside Shortbed (Restomod in progress) '47 Chevy 3100 5 Window (long term project) ‘65 Chevy Biscayne (Emily) ‘39 Dodge Business Coupe (Clarence) “I fought the law and the law won" now I are a retired one! Support those brave men/women who stand the "Thin Blue Line"! Hug a cop! USAF 1965-1969 Weather Observation Tech (I got paid to look at the clouds)